A5073728852- earthquake and tectonic studies
- Landslides and related hazards
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Earthquake Detection and Analysis
- Geological and Geochemical Analysis
- Geological formations and processes
- Geology and Paleoclimatology Research
- Seismic Waves and Analysis
- Geophysical and Geoelectrical Methods
- High-pressure geophysics and materials
- Groundwater and Watershed Analysis
- Geophysical Methods and Applications
- Geological and Geophysical Studies Worldwide
- Flood Risk Assessment and Management
- Geochemistry and Geologic Mapping
- Soil Moisture and Remote Sensing
- Seismic Imaging and Inversion Techniques
- Cryospheric studies and observations
National Geophysical Research Institute
2021-2024
University of Jammu
2023
Institute of Seismological Research
2015-2022
Adikavi Nannaya University
2020-2021
The Kumaun Himalaya is considered as the most active part of Central Seismic gap in Indian Sub-continent. In this paper, we presented surface deformation rates region from February 2017 to 2021 using Persistent Scatterer Interferometric Synthetic Aperture Radar (PSI) technique. cumulative displacement that occurred during span 4 years ±55 mm, whereas Line Sight (LOS) velocity rate ranges ±7 mm/yr. Apart PSI, also estimated b-value 1803 (399 events) and its value 0.54 ± 0.03. A distinct NE-SW...
The key objective of the present study is to estimate surface displacement and understand/monitor active deformation pattern in Kachchh region post 2001 Bhuj Earthquake by implementing Persistent Scatterer Interferometric Synthetic Aperture Radar (PSI) Differential (DInSAR) techniques. We employed ENVISAT ASAR (15 images), ALOS PALSAR (6 pairs) SENTINEL-1A (117 images) data sets acquired during periods 2003–2005, 2007–2009, 2016–2020 respectively. PSI results Envisat dataset reveals that...
The region of the Himalayan arc covering Sikkim and eastern Nepal experiences dominant strike-slip deformation oblique to convergence direction Indian plate. This is also traversed by transverse structural tectonic features. present study aimed at comprehending horizontal vertical rates for this using PSInSAR technique. We utilized 70 78 Single Look Complex images in ascending descending passes respectively, spanning from February 2017 August 2023 time-series displacement measurement along...
In the present study, we have identified tectonically active zones along Island Belt Uplift (IBU), an upthrown block of E-W trending Fault (IBF). Major and minor transverse faults segmented IBU into four sub-uplifts, viz. Pachham (PU), Khadir (KU), Bela (BU), Chorar (CU) from west to east, respectively. The work includes geodetic morphotectonic analysis region. Normalized Steepness Index (Ksn) was performed supported by swath profiling mark tectonic activity variations across strike IBF in...
Regardless of numerous paleoseismological studies along the active front Himalayas, it still lacks precision with respect to earthquake recurrence, rupture, slip mechanism, etc. which hinders understanding region's seismic hazards. Considering hazard posed by previous Himalayan earthquakes, for instance, from Kashmir, Chamba, Kumaun-Garhwal, Nepal, etc., becomes vital identify seismogenic structures and length rupture that might be affected in near future. In present study, investigation is...
The present study has been carried out with special emphasis on the spatial and temporal variability of sedimentary architecture along strike length North Almora Thrust (NAT). Here, we investigated fluvial terraces Saryu, Jaigan, Kosi, Gagas, Ramganga rivers in NAT zone Central Kumaun Himalaya. sequences (fluvial terraces) these river valleys are analyzed to explain response tectonic activity during late Quaternary. preserved debris flow terraces, bedrock strath fluvio-lacustrine that...
The landform aggradation in an arid climatic region is often regulated by external forces, that provide signatures of climate and tectonic perturbations. landforms the central segment Northern Hill Range (NHR), which marks surface expression Kachchh Mainland Fault (KMF), are investigated this study to understand role changes activity during time incision. Geomorphologically, KMF expressed presence ∼80–150 m high E-W trending escarpment. preserves alluvial fan surfaces have been truncated at...
As per the Bureau of Indian Standards (BIS), Kachchh region western peninsular India falls under seismically active region, where faults experienced existence several moderate to high magnitude earthquakes in historic past. The present-day seismicity is mainly concentrated toward eastern part Mainland Fault (KMF). Even though, segment KMF does not exhibit at present, but tectono-geomorphology this reveals various geomorphic features which indicates its nature. In study, we are focusing on...